Home / 7,430.72-11,145.51-2,748.53

Finding the Fourth Proportional to 7,430.72, 11,145.51 and 2,748.53

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Solution

The fourth proportional to 7,430.72, 11,145.51 and 2,748.53 is: 4,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.72 : 11,145.51 = 2,748.53 : x
  2. Step 2: Convert to fraction form
    7,430.72/11,145.51 = 2,748.53/x
  3. Step 3: Cross multiply
    7,430.72x = 11,145.51 × 2,748.53
  4. Step 4: Simplify right side
    7,430.72x = 30,633,796.46
  5. Step 5: Solve for x
    x = 30,633,796.46/7,430.72
  6. Step 6: Final answer
    x = 4,122.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.